Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4762005
Title: Pressure effect on Bi0.4Ca0.6Mn1-xRu xO3 manganite: Enhanced ferromagnetism and collapsed exchange bias
Authors: Fita, I.
Markovich, V.
Wisniewski, A.
Puzniak, R.
Mahendiran, R. 
Gorodetsky, G.
Issue Date: 1-Nov-2012
Citation: Fita, I., Markovich, V., Wisniewski, A., Puzniak, R., Mahendiran, R., Gorodetsky, G. (2012-11-01). Pressure effect on Bi0.4Ca0.6Mn1-xRu xO3 manganite: Enhanced ferromagnetism and collapsed exchange bias. Journal of Applied Physics 112 (9) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4762005
Abstract: Pressure effect on magnetic state of Ru-doped charge-ordered manganite Bi0.4Ca0.6Mn1 - xRu xO3 (x=0.1, 0.2) was investigated by magnetization measurements in the temperature range of 5-315 K and under pressure up to ∼10 kbar. It was found that the x=0.2 composition is basically ferromagnetic (FM) while the low-doped (x=0.1) one exhibits a FM cluster glass behavior and exchange bias (EB) effect at low temperatures. Bi0.4Ca 0.6Mn0.9Ru0.1O3 demonstrates a substantial pressure-enhanced ferromagnetism, evidenced by ∼70 increase in spontaneous magnetization at 10 K under 10.3 kbar. It appears that an applied pressure strongly increases the FM to antiferromagnetic (AFM) phase ratio in the sample, leading to a notable decrease in both coercive field HC and EB field HE (HC and HE at 10 K decrease under pressure of ∼10 kbar by about 40 and 50%, respectively). The pressure-induced changes are qualitatively described within the simple model for FM size-variable clusters embedded in an AFM matrix. It is argued that both Ru-doping and external pressure act similarly, leading to a growth of the FM phase volume. © 2012 American Institute of Physics.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97600
ISSN: 00218979
DOI: 10.1063/1.4762005
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

5
checked on Oct 18, 2018

WEB OF SCIENCETM
Citations

5
checked on Oct 2, 2018

Page view(s)

33
checked on Oct 19, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.